edward3778 edward3778

07-05-2024
Mathematics

Answered

A researcher wants to estimate the mean exposure to a certain type of internet ads. Originally they found a 99% confidence interval, and then, with all other factors the same, they decreased the confidence level to 90%. As a result...
a. the confidence interval will not change
b. the confidence interval will become wider
c. the confidence interval will become narrower
d. the confidence interval may get wider or narrower
e. none of the above

Answer :

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